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Subject: Re: PROBLEM: 3.0-rc kernels unbootable since -rc3
From: Peter Zijlstra <peterz@infradead.org>
To: paulmck@linux.vnet.ibm.com
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Date: Tue, 12 Jul 2011 21:10:36 +0200
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On Tue, 2011-07-12 at 11:59 -0700, Paul E. McKenney wrote:
> OK, so the infinite loop in task_waking_fair() happens even if RCU callbacks
> are deferred until after the scheduler is fully initialized.  Sounds like
> one for the scheduler guys.  ;-) 

https://lkml.org/lkml/2011/7/12/150

?